Demountable rim



M. HOLLISTER, Jn. DEMOUNTAB'LE RIM. APPLICATION FILED 1u|.Y 5.191s.

1,345,332. -Pafemalune 29, 1920.

' along side the UNITED STATE-'s PATENT oFFIcE.

'A MARK HoLLIsTER, Jn., or FORT DODGE, IOWA.l

DEMOUNTABLE RIM.

Tol all Awhom it may concern Be it known that I, MARK HoLLIsTER, J r., a citizen of the United States, and a resident of Fort Dodge, in the county of Webster and State of Iowa, have invented acertain new and useful Demountable Rim, of which the following is a specification.

The object of my invention is to provide a demountable rim of simple, durable and inexpensive construction.

More particularly 1t 1s my object to provide a demountable rim adapted to support and carry a tire, and to be mounted on the` nary way, and having oI 1' -oppositey sides annular members projecting along side the tire and adapted toreceive the wear of travel when the tire becomes deflated beyond a certain point.

Still a further object 1s to provide sucha demountable rim of p'eculiar oonstruct'1on,

whereby the parts may be readily assembled and connected.`

With these and other objects in view my invention consists nin the construction, arrangement and combination ofthe -various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claim and illustrated in the `accompanying drawings, in which:

Figure 1 shows a side elevation of a portion of a wheel equipped with a demount- -able rim embodying my invention.

Fig. 2 shows a vertical, sectional vieW taken on the line 2-2 'of Fig. 1.

In the accompanying drawings, I have used the reference-.numeral 10 to'indicate generally the felly'of a wheel to which the spoke 11 is attached. On `the periphery of the felly is the metal fixed rim 12.

My improved demountable rim comprises an annular band or ring 13 having at one edge an inwardly opening channel-shaped portion 14 from which there extends outwardly a curved flange 15 designed to fit the side of the tire and project outwardly tire, such a distance that when the tire is materially deflated the flange 15 will receive the wear of travel.

.felly or fixed rim of the wheel in the ordi- A firmly held in position.

` the wheel. in the ordinary-way The channel-shaped portion 14 is designed to receive the bead of a tire 16 in which is an inner `tube 17.

VNear` its edge opposite the channel-shaped portion V121:` the annular band or ring 13 lis formed with an annular rib 18' on its inner Specification of )tetters Patent. Patented une 29, 1920, Application filed July 5, 1918.l SeralNo. 243,370. v

or under surface and 4 with an annulanl groove 19 in its outer surface.

A coacting member for locking the-tire' on the demountable rim and for serving as a means. on which themachine ma travel when the tireis deflated, is provi ed consisting of an annu-lar member 20 in the form of a'split ring which has the same general shape as the member 15.

At the inner edge of the member 2Q is a channel-shaped member 21, similar in shape inthe annular groove-19.. v

Adjacenty to the opposite end 'edges lof the member 20 are laterally extending. flanges 22.

In the installation of myl improved v demountable rim, the tire is placed on the rim member 13I in deflated condition. The member 20 is then sprung open and pushed side- Wiseagainst the tire until it is in position the member 20 on the member 13.

The tire .may then be inflated, and is to the channel-shaped member 14, the' lower .portion of which is designed'to be received4 a'nut,

obviousl that the demountable rim will be My demountable rim may by means of movable lugs 26 or in-any suitable way.I

The advantages of a device of the kind may be largely seen from the foregoingdescription.

be mounted 'on The parts are of extremely simple and i nexpensive construction; are quickly and easily assembled or taken apart and may be used in the same way as in ordinary demountable rims. A spare tire can Vbecarried on a rim of this kind.-

It will be noted that the rib 18 projects. radially inwardly. on the wheel and thereby affords, a better grip for the lug-or other means, whereby the demountable rim is `locked on thewheel. In the form of the dcvice shown in the drawings the metal rim 12 is provided with a groove 27 to receive the rib 18.

It may benoted that the outer edges of the. members 15 and 20 are formed with laterally extending beads 20, as lillustrated in Fig. 2.

It may be .also noted that-the outer edge of each o f these members and 20 is provided lwith a series of studs or the like vAny suitable form of these'lstuds may be emp'loyed for providing ya surface or gripping edge which ,will serve as an anti-slud- "ding device when the driver of the car is compelledto travel on the flanges 15 and 20 of the demountable rim.

` It will bel understood that my demountable rim has the great advantage of furnishing a means on which the car will travel if( a tire should become deflated accidentally o' otherwise.

In this connection it may be notedthat the wheel having a deflated tire would drop very little, so that the car will tend to travel almost in the normal way with the exception vof the loss of resiliency. .7

Not only will this device eliminate a large part ofthe road trouble with tires, by permitting the user of the car to drive in on y Athe demountable rim, but even more imporkind mentioned.

It is also well-known that one ofthe commonest tire troubles arises from rim cutting ofthe casing. With a device of this kind a rim vcut is impossible, and hence there will beeffected'a very substantial saving in tire expense.v l

4 Another advantage arising from the use of a' demountable rim of this type arises from the fact that where my rims are used,

`the tire can bey built with a considerable saving of material at thesides which are in danger `of rim cut, and also are supported by the flanges of the demountable rim, and additional material if desired may be placed on the tread of the tire whereby much greater mileage can be had from the ltire than is possible with tires usedwithout demountable rims of this type.

Another advantage arises froml the fact v that on account of the support given to the `tire by the flanges of my improved demountable rim at the side of the tire, the

tire can be run under less air pressure than lwhere such 'rims are not used, which results in lessstrain o'n the tire and an increase in the mileage which can be secured from it.

When the rim with the tire thereon is on the wheel and the tire becomes deflated the machine will travel `on the members 30 and 15, instead of on the rim cutting the tire, whereby there is affected a substantial tire saving.

Some changes may be made in the construction and arrangement of thel parts of my improved demountable rim without departing from the'essential features and purposes of my invention, and it is my intention to cover by my claim any modifiedforms s of structure or use of mechanical equivalents which maybe included within the scope of my claim.

I claim as' my invention:

In a device of the character described, a demountable rim, comprising 4an annular rim member having on its outer surface an annular rib, having adjacent to each of its sides a channel shaped -portion'adapted to receive theibead of a tire, an annular outwardly extending curved flange formed on one of said channel shaped portions, said flange being designed to rest snugly against a portion of the side of the tire, when it is inflated, an annular 'groove formed in said rim adjacent to the free channel shaped portion, an annular member having the form of a split ring adapted vto fit in said groove for holding the tire on said rim, said last described member having an outwardly extending curved flange formed thereon, and adapted to rest snuglyagainst the free side4 of the tire, means for locking the endsv of the last described annular member together,'a tread surface formed on the outer edge of both of said curved flanges, whereby -when the tire becomes deflated, the tread surfaceswill engage with the road, while the tire will be received between said flanges and be rotected thereby.

Des oines, Iowa, June 17, 1918.

MARK HQLLISTER, JR. 

